Yes, I do.  It seems so strange that nothing I try will enable it to go out over TCP.  There is very little configuration to force it out TCP.  I have tried a few thing that Alex has suggested but nothing sends it over TCP.

Thank you,

From: sr-users [mailto:sr-users-bounces@lists.kamailio.org] On Behalf Of Joel Serrano
Sent: Tuesday, May 15, 2018 12:23 PM
To: Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.org>
Subject: Re: [SR-Users] Transport question

You have a listen= param with tcp transport right?

On Tue, May 15, 2018 at 9:22 AM, Juha Heinanen <jh@tutpro.com> wrote:

Wilkins, Steve writes:

> I tried your suggestion and everything is still going over UDP.  I
> verified with tcpdump/wireshark and all SIP traffic is UDP.

Check your send socket, i.e., that it listens on TCP.

-- Juha

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